Nasdaq · CIK 0001387467
AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd
Insider trading from SEC Form 4. Last filing 33 d ago. Close $25.86 on Oct 13, 2026, +48% from the 52-week low and -52% from the high.
In brief
ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL) has 112 SEC Form 4 filings on file from 9 insiders, the latest filed on Sep 11, 2026. In the last 90 days insiders made 0 open-market buys worth $0 and 1 open-market sell worth $30k, net -$30k.
37 open-market trades have been scored at AOSL. The newest: Bing Xue (EVP-WW Sales & Bus Development) sold $30k of stock on Jul 16, 2026, filed Jul 17, 2026, scored 0 (weak), under a 10b5-1 plan. The largest of the 37 shown: Yifan Liang (CFO and Corp Secretary) sold $1.6M on Mar 11, 2024, scored 25 (weak), under a 10b5-1 plan. 2 insiders sold within 14 days of each other around May 22, 2026.
25 Form 144 notices of planned sales are on file, the latest filed Jul 16, 2026.
Last 90 days
Net insider value
-$30k
more sold than bought
Buys
0
$0 by 0 insiders
Sells
1
$30k by 1 insider
Insiders on file
9
with a Form 4 at this company
Price and insider trades, last year
AOSLOct 13, 2026 · close 25.86
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at ALPHA & OMEGA SEMICONDUCTOR Ltd, scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 0Weak | Bing Xue EVP-WW Sales & Bus Development sell | $30k 875 shares | -1% | +76% from low-42% from high | |
| 8Weak | Bing Xue EVP-WW Sales & Bus Development sell | $231k 4,916 shares | -4% | +159% from low-15% from high | |
| 19Weak | Claudia Chen director sell | $161k 4,061 shares | -13% | +139% from low-15% from high | |
| 15Weak | Bing Xue EVP-WW Sales & Bus Development sell | $202k 4,916 shares | -4% | +121% from low-22% from high | |
| 17Weak | Bing Xue EVP-WW Sales & Bus Development sell | $57k 1,832 shares | -1% | +92% from low-2% from high | |
| 38Weak | Stephen Chunping Chang Chief Executive Officer sell | $513k 14,884 shares | -2% | +108% from low0% from high | |
| 31Weak | Yifan Liang CFO and Corp Secretary sell | $302k 8,625 shares | -3% | +108% from low0% from high | |
| 32Weak | Stephen Chunping Chang Chief Executive Officer sell | $178k 5,594 shares | -1% | +87% from low-5% from high | |
| 39Weak | Yifan Liang CFO and Corp Secretary sell | $810k 26,517 shares | -9% | +87% from low-5% from high | |
| 2Weak | Bing Xue EVP-WW Sales & Bus Development sell | $53k 2,408 shares | -2% | +32% from low-33% from high | |
| 38Weak | Mike F Chang Executive Chairman buy | $641k 33,727 shares | +1% | +22% from low-38% from high | |
| 2Weak | Bing Xue EVP-WW Sales & Bus Development sell | $55k 2,460 shares | -2% | +40% from low-38% from high | |
| 0Weak | Bing Xue EVP-WW Sales & Bus Development sell | $17k 737 shares | -1% | +38% from low-48% from high | |
| 1Weak | Bing Xue EVP-WW Sales & Bus Development sell | $38k 1,845 shares | -1% | +24% from low-54% from high | |
| 1Weak | Bing Xue EVP-WW Sales & Bus Development sell | $34k 1,845 shares | -1% | +14% from low-62% from high | |
| 1Weak | Bing Xue EVP-WW Sales & Bus Development sell | $44k 1,845 shares | -1% | +47% from low-52% from high | |
| 1Weak | Bing Xue EVP-WW Sales & Bus Development sell | $43k 1,242 shares | -1% | +33% from low-28% from high | |
| 19Weak | Bing Xue EVP-WW Sales & Bus Development sell | $89k 1,883 shares | -1% | - | |
| 29Weak | Claudia Chen director sell | $288k 5,623 shares | -17% | - | |
| 47Moderate | Yifan Liang CFO and Corp Secretary sell | $1.5M 31,004 shares | -10% | - | |
| 16Weak | Bing Xue EVP-WW Sales & Bus Development sell | $36k 875 shares | -1% | - | |
| 38Weak | Lucas S. Chang director sell | $518k 12,497 shares | -33% | - | |
| 8Weak | Wenjun Li Chief Operating Officer sell | $77k 2,183 shares | -3% | - | |
| 19Weak | Wenjun Li Chief Operating Officer sell | $303k 9,346 shares | -13% | +76% from low-27% from high | |
| 34Weak | Lucas S. Chang director sell | $129k 3,377 shares | -9% | +96% from low-19% from high | |
| 10Weak | Yifan Liang CFO and Corp Secretary sell | $356k 10,000 shares | -3% | +78% from low-26% from high | |
| 1Weak | Bing Xue EVP-WW Sales & Bus Development sell | $38k 1,956 shares | -1% | +1% from low-42% from high | |
| 12Weak | Bing Xue EVP-WW Sales & Bus Development sell | $90k 4,401 shares | -3% | +4% from low-38% from high | |
| 25Weak | Yifan Liang CFO and Corp Secretary sell | $1.6M 70,000 shares | -22% | +15% from low-31% from high | |
| 10Weak | Bing Xue EVP-WW Sales & Bus Development sell | $325k 14,292 shares | -10% | +12% from low-33% from high | |
| 22Weak | Mike F Chang Executive Chairman sell | $807k 30,000 shares | -1% | +35% from low-28% from high | |
| 4Weak | Michael L Pfeiffer director sell | $91k 3,337 shares | -6% | +33% from low-29% from high | |
| 16Weak | Bing Xue EVP-WW Sales & Bus Development sell | $35k 1,341 shares | -1% | +28% from low-31% from high | |
| 15Weak | Mike F Chang Executive Chairman sell | $796k 30,000 shares | -1% | +30% from low-30% from high | |
| 15Weak | Mike F Chang Executive Chairman sell | $750k 30,000 shares | -1% | +24% from low-33% from high | |
| 8Weak | Bing Xue EVP-WW Sales & Bus Development sell | $31k 1,237 shares | -2% | +24% from low-33% from high | |
| 7Weak | Mike F Chang Executive Chairman sell | $751k 30,000 shares | -1% | +6% from low-35% from high |
Planned sales
Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales
| Filed | Seller | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Jul 16, 2026 | BING XUE Officer | 875 0.00% of outstanding | $30k | Jul 16, 2026 | $433k |
| Jun 16, 2026 | BING XUE Officer | 4,916 0.02% of outstanding | $231k | Jun 16, 2026 | $259k |
| May 22, 2026 | CLAUDIA CHEN Director | 4,061 0.01% of outstanding | $161k | May 22, 2026 | none |
| May 18, 2026 | BING XUE Officer | 4,916 0.02% of outstanding | $202k | May 18, 2026 | $110k |
| Apr 17, 2026 | STEPHEN CHANG Officer, Director | 14,884 0.05% of outstanding | $513k | Apr 17, 2026 | $178k |
| Apr 17, 2026 | YIFAN LIANG Officer | 8,625 0.03% of outstanding | $302k | Apr 17, 2026 | $810k |
| Apr 16, 2026 | BING XUE Officer | 1,832 0.01% of outstanding | $57k | Apr 16, 2026 | $108k |
| Apr 14, 2026 | YIFAN LIANG Officer | 26,517 0.09% of outstanding | $810k | Apr 14, 2026 | none |
| Apr 14, 2026 | STEPHEN CHANG Officer, Director | 5,594 0.02% of outstanding | $178k | Apr 14, 2026 | none |
| Mar 16, 2026 | BING XUE Officer | 2,408 0.01% of outstanding | $53k | Mar 16, 2026 | $71k |
| Feb 17, 2026 | BING XUE Officer | 2,460 0.01% of outstanding | $55k | Feb 17, 2026 | $54k |
| Jan 15, 2026 | BING XUE Officer | 737 0.00% of outstanding | $17k | Jan 15, 2026 | $71k |
| Dec 15, 2025 | BING XUE Officer | 1,845 0.01% of outstanding | $38k | Dec 15, 2025 | $34k |
| Nov 14, 2025 | BING XUE Officer | 1,845 0.01% of outstanding | $34k | Nov 14, 2025 | none |
| Jan 13, 2025 | BING XUE Officer | 1,242 0.00% of outstanding | $43k | Jan 13, 2025 | $125k |
| Dec 12, 2024 | BING XUE Officer | 1,883 0.01% of outstanding | $89k | Dec 12, 2024 | $36k |
| Dec 5, 2024 | CLAUDIA CHEN Director | 5,623 0.02% of outstanding | $288k | Dec 5, 2024 | none |
| Dec 4, 2024 | YIFAN LIANG Officer | 31,004 0.11% of outstanding | $1.5M | Dec 4, 2024 | none |
| Dec 3, 2024 | LUCAS SHEN-LUN CHANG Director | 12,497 0.04% of outstanding | $518k | Dec 3, 2024 | none |
| Oct 24, 2024 | WENJUN LI Officer | 2,183 0.01% of outstanding | $77k | Oct 24, 2024 | $303k |
| Sep 11, 2024 | WENJUN LI Officer | 9,346 0.03% of outstanding | $303k | Sep 11, 2024 | none |
| Aug 23, 2024 | Chang Lucas S. Director | 3,377 0.01% of outstanding | $129k | Aug 23, 2024 | none |
| Aug 12, 2024 | YIFAN LIANG Officer | 10,000 0.03% of outstanding | $356k | Aug 12, 2024 | none |
| Apr 22, 2024 | BING XUE Officer | 1,956 0.01% of outstanding | $38k | Apr 22, 2024 | $416k |
| Mar 20, 2024 | BING XUE Officer | 4,401 0.02% of outstanding | $90k | Mar 20, 2024 | $360k |
Transactions
The newest 50 of 203 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 24, 2026 | Stephen Chunping Chang Chief Executive Officer | GGift Common Shareindirect: By STEPHEN CHUPING CHANG TTEE TRUST | +100,947 | $0.00 | $0 | 100,947 | 33 d ago |
| Aug 24, 2026 | Mike F Chang Executive Chairman | GGift Common Sharesindirect: By CHANG TRUST | -100,947 | $0.00 | $0 | 3,698,839 | 33 d ago |
| Aug 13, 2026 | Mike F Chang Executive Chairman | GGift Common Shares | -3,000,000 | $0.00 | $0 | 560,540 | Aug 14, 2026 |
| Jul 20, 2026 | Joshua C. Chien director | AGrant or award Common Share | +1,368 | $0.00 | $0 | 1,368 | Jul 21, 2026 |
| Jul 16, 2026 | Bing Xue EVP-WW Sales & Bus Development | SOpen-market sale Common Share10b5-1 | -875 | $33.99 | $30k | 122,785 | Jul 17, 2026 |
| Jul 13, 2026 | Mike F Chang Executive Chairman | GGift Common Shares | -23,754 | $0.00 | $0 | 3,560,540 | Jul 15, 2026 |
| Jun 16, 2026 | Bing Xue EVP-WW Sales & Bus Development | SOpen-market sale Common Share10b5-1 | -4,916 | $47.09 | $231k | 123,660 | Jun 17, 2026 |
| Jun 1, 2026 | Mike F Chang Executive Chairman | GGift Common Shares | -30,000 | $0.00 | $0 | 3,584,294 | Jun 3, 2026 |
| May 26, 2026 | Mike F Chang Executive Chairman | GGift Common Shares | -39,780 | $0.00 | $0 | 3,614,294 | May 28, 2026 |
| May 22, 2026 | Mike F Chang Executive Chairman | GGift Common Shares | -736,252 | $0.00 | $0 | 3,654,074 | May 27, 2026 |
| May 22, 2026 | Claudia Chen director | SOpen-market sale Common Share10b5-1 | -3,844 | $39.47 | $152k | 28,409 | May 26, 2026 |
| May 21, 2026 | Stephen Chunping Chang Chief Executive Officer | GGift Common Share | -2,000 | $0.00 | $0 | 634,070 | May 26, 2026 |
| May 22, 2026 | Claudia Chen director | SOpen-market sale Common Share10b5-1 | -217 | $40.54 | $8,797 | 28,192 | May 26, 2026 |
| May 18, 2026 | Bing Xue EVP-WW Sales & Bus Development | SOpen-market sale Common Share10b5-1 | -4,916 | $41.00 | $202k | 127,701 | May 20, 2026 |
| Apr 27, 2026 | Yifan Liang CFO and Corp Secretary | GGift Common Shares | -300 | $0.00 | $0 | 269,703 | Apr 30, 2026 |
| Apr 28, 2026 | Yifan Liang CFO and Corp Secretary | GGift Common Shares | -300 | $0.00 | $0 | 269,403 | Apr 30, 2026 |
| Apr 17, 2026 | Stephen Chunping Chang Chief Executive Officer | SOpen-market sale Common Share10b5-1 | -1,492 | $32.90 | $49k | 649,293 | Apr 20, 2026 |
| Apr 17, 2026 | Yifan Liang CFO and Corp Secretary | SOpen-market sale Common Shares10b5-1 | -8,625 | $35.00 | $302k | 270,003 | Apr 20, 2026 |
| Apr 16, 2026 | Bing Xue EVP-WW Sales & Bus Development | SOpen-market sale Common Share10b5-1 | -1,832 | $31.21 | $57k | 132,617 | Apr 20, 2026 |
| Apr 17, 2026 | Stephen Chunping Chang Chief Executive Officer | SOpen-market sale Common Share10b5-1 | -3,481 | $33.90 | $118k | 645,812 | Apr 20, 2026 |
| Apr 17, 2026 | Stephen Chunping Chang Chief Executive Officer | SOpen-market sale Common Share10b5-1 | -9,911 | $34.90 | $346k | 635,901 | Apr 20, 2026 |
| Apr 14, 2026 | Stephen Chunping Chang Chief Executive Officer | SOpen-market sale Common Share10b5-1 | -5,594 | $31.90 | $178k | 650,785 | Apr 16, 2026 |
| Apr 14, 2026 | Yifan Liang CFO and Corp Secretary | SOpen-market sale Common Shares10b5-1 | -7,391 | $29.00 | $214k | 297,754 | Apr 16, 2026 |
| Apr 14, 2026 | Yifan Liang CFO and Corp Secretary | SOpen-market sale Common Shares10b5-1 | -7,939 | $30.00 | $238k | 289,815 | Apr 16, 2026 |
| Apr 14, 2026 | Yifan Liang CFO and Corp Secretary | SOpen-market sale Common Shares10b5-1 | -11,187 | $32.00 | $358k | 278,628 | Apr 16, 2026 |
| Mar 16, 2026 | Wenjun Li Chief Operating Officer | FTax withholding Common Share | -3,319 | $21.43 | $71k | 68,846 | Mar 25, 2026 |
| Mar 16, 2026 | Mike F Chang Executive Chairman | FTax withholding Common Shares | -14,419 | $21.43 | $309k | 4,355,155 | Mar 25, 2026 |
| Mar 16, 2026 | Mike F Chang Executive Chairman | AGrant or award Common Shares | +22,500 | $0.00 | $0 | 4,390,326 | Mar 25, 2026 |
| Mar 16, 2026 | Wenjun Li Chief Operating Officer | FTax withholding Common Share | -2,288 | $21.43 | $49k | 66,558 | Mar 25, 2026 |
| Mar 16, 2026 | Wenjun Li Chief Operating Officer | AGrant or award Common Share | +10,000 | $0.00 | $0 | 86,558 | Mar 25, 2026 |
| Mar 16, 2026 | Yifan Liang CFO and Corp Secretary | AGrant or award Common Shares | +22,500 | $0.00 | $0 | 294,144 | Mar 18, 2026 |
| Mar 16, 2026 | Stephen Chunping Chang Chief Executive Officer | AGrant or award Common Share | +67,500 | $0.00 | $0 | 632,362 | Mar 18, 2026 |
| Mar 16, 2026 | Wenjun Li Chief Operating Officer | AGrant or award Common Share | +10,000 | $0.00 | $0 | 82,165 | Mar 18, 2026 |
| Mar 16, 2026 | Bing Xue EVP-WW Sales & Bus Development | SOpen-market sale Common Share10b5-1 | -2,408 | $21.92 | $53k | 113,631 | Mar 18, 2026 |
| Mar 16, 2026 | Mike F Chang Executive Chairman | AGrant or award Common Shares | +22,500 | $0.00 | $0 | 4,392,074 | Mar 18, 2026 |
| Mar 16, 2026 | Mike F Chang Executive Chairman | FTax withholding Common Shares | -17,984 | $21.43 | $385k | 4,374,090 | Mar 18, 2026 |
| Mar 16, 2026 | Yifan Liang CFO and Corp Secretary | FTax withholding Common Shares | -6,889 | $21.43 | $148k | 287,255 | Mar 18, 2026 |
| Mar 16, 2026 | Stephen Chunping Chang Chief Executive Officer | FTax withholding Common Share | -25,644 | $21.43 | $550k | 606,718 | Mar 18, 2026 |
| Mar 16, 2026 | Wenjun Li Chief Operating Officer | FTax withholding Common Share | -3,272 | $21.43 | $70k | 78,893 | Mar 18, 2026 |
| Mar 16, 2026 | Bing Xue EVP-WW Sales & Bus Development | AGrant or award Common Share10b5-1 | +15,000 | $0.00 | $0 | 128,631 | Mar 18, 2026 |
| Mar 16, 2026 | Mike F Chang Executive Chairman | FTax withholding Common Shares | -9,829 | $21.43 | $211k | 4,364,261 | Mar 18, 2026 |
| Mar 16, 2026 | Yifan Liang CFO and Corp Secretary | FTax withholding Common Shares | -4,610 | $21.43 | $99k | 282,645 | Mar 18, 2026 |
| Mar 16, 2026 | Stephen Chunping Chang Chief Executive Officer | FTax withholding Common Share | -17,839 | $21.43 | $382k | 588,879 | Mar 18, 2026 |
| Mar 16, 2026 | Wenjun Li Chief Operating Officer | FTax withholding Common Share | -2,267 | $21.43 | $49k | 76,626 | Mar 18, 2026 |
| Mar 16, 2026 | Bing Xue EVP-WW Sales & Bus Development | FTax withholding Common Share10b5-1 | -5,598 | $21.43 | $120k | 123,033 | Mar 18, 2026 |
| Mar 16, 2026 | Mike F Chang Executive Chairman | AGrant or award Common Shares | +22,500 | $0.00 | $0 | 4,386,761 | Mar 18, 2026 |
| Mar 16, 2026 | Yifan Liang CFO and Corp Secretary | AGrant or award Common Shares | +22,500 | $0.00 | $0 | 305,145 | Mar 18, 2026 |
| Mar 16, 2026 | Stephen Chunping Chang Chief Executive Officer | AGrant or award Common Share | +67,500 | $0.00 | $0 | 656,379 | Mar 18, 2026 |
| Mar 16, 2026 | Wenjun Li Chief Operating Officer | AGrant or award Common Share | +10,000 | $0.00 | $0 | 86,626 | Mar 18, 2026 |
| Mar 16, 2026 | Bing Xue EVP-WW Sales & Bus Development | FTax withholding Common Share10b5-1 | -3,584 | $21.43 | $77k | 119,449 | Mar 18, 2026 |
50 of 203 rows shown.
Insiders
Everyone who has filed a Form 4 here.
- Lucas S. Changdirector
- Mike F ChangExecutive Chairman
- Stephen Chunping ChangChief Executive Officer
- Claudia Chendirector
- Joshua C. Chiendirector
- Wenjun LiChief Operating Officer
- Yifan LiangCFO and Corp Secretary
- Michael L Pfeifferdirector
- Bing XueEVP-WW Sales & Bus Development
Questions about AOSL
Answered from the filings on this page, as of the latest one.
Are insiders buying AOSL?
As of Sep 11, 2026, SEC Form 4 filings show 0 open-market buys worth $0 by 0 insiders and 1 open-market sell worth $30k by 1 insider at ALPHA & OMEGA SEMICONDUCTOR Ltd in the last 90 days, net -$30k. Only purchases (code P) and sales (code S) count; grants, option exercises and tax withholding do not.
Who was the last insider to trade AOSL on the open market?
Bing Xue (EVP-WW Sales & Bus Development) sold $30k of AOSL on Jul 16, 2026 and filed the Form 4 on Jul 17, 2026. InsiderTell scored 0 (weak), under a 10b5-1 plan.
How many insiders file Form 4 at ALPHA & OMEGA SEMICONDUCTOR Ltd?
9 people have filed a Form 4 at ALPHA & OMEGA SEMICONDUCTOR Ltd, among them Lucas S. Chang (director), Mike F Chang (Executive Chairman), Stephen Chunping Chang (Chief Executive Officer). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.